Electric kettle



FIG. 1 is a top perspective view of an electric kettle showing my new design;

FIG. 2 is an exploded perspective view thereof;

FIG. 3 is a right side view thereof;

FIG. 4 is a front view thereof;

FIG. 5 is a left side view thereof;

FIG. 6 is a rear view thereof;

FIG. 7 is a top plan view thereof; and,

FIG. 8 is a bottom plan view thereof.

The broken lines illustrate portions of the electric kettle and form no part of the claimed design. 

The ornamental design for an electric kettle, as shown and described. 